• adding korean, greek, catalan, czech, swedish, turkish and dutch translations
• add a new system tag group collecting all new applied tags
• added delete selected files functionality to the list and grid perspectives
• adding generating thumbs for pdf, bmp, webp and svg files in grid perspective
• added import tag groups functionality
• internationalizing the UI of the chrome extension
• reimplementing loading animation
• adding confirmation on the app closing by unsaved changes on the currently opened file
• fixing drag and drop issue of tags from files to tag groups
• exchanging pdf.js with a newer version, moving it as core lib
• improving code quality by adding jshint and jscs to the project
• clearing search results on directory change
• adding handler for the add file button
• adding title editing to the web scrapping function
• correcting binding of fastclick lib
• disabling the support of AVI files in the default settings #242